Overclocking consists of running components at faster internal speeds than they are rated for. If you are serious about overclocking your computer, you need to do extensive research into the components you select, as some parts respond to overclocking better than others. Processors that respond well to heavy overclocking are generally not very expensive (though overclockable memory is), but the price of a component is by no means a guarantee of its overclocking potential. Overclocking usually voids your warranty and is risky (you can destroy your entire computer), so be warned! You need to think hard about cooling the computer as overclocking generates heat. Anything from a few extra fans to a liquid-cooled system may be necessary depending on the nature of your system.For Intel CPU , as of Haswell/Skylake , only the K series CPU’s(which cost about 20-40 $ more than the equivalent non-overclock variant) and the Extreme Series generally allow full overclocking , while others have limited(Turbo Boost) or none. Examples are i7-4770K , i5-6600K or i7-4960X. The cheapest Intel CPU overclockable is Pentium G3258 , and there are no overclockable Celeron or i3 versions. Some processors(within the same model!) may be able to overclock higher or lower. For example , a good Haswell 4770K chip can clock up to about 4.6 Ghz , an excellent one may be able to hit 5Ghz , while a bad one may stop at 4.3 GHz(assuming that all use the same cooling method).A rare exception is the Broadwell-based i7-5775C and i5-5665C, which is fully overclockable and has a top of the line integrated graphics.
This can be ideal for always-on entertainment systems. Underclocked parts run cooler, often enabling passive cooling options to be used, which leads to a much quieter system , and you’ll also save on power.
However , you’ll lose performance instead from the CPU.
Earn a free Certificate of Completion for completing this course. Pass a 50-question test on this course with a score of 70 or higher and receive a certificate of completion. Visit our Computer Repair and Assembly Certificate of Completion page for more information.
The text for this course is available under the Creative Commons Attribution-ShareAlike License.